| /* Test program for MPX map allocated bounds. |
| |
| Copyright 2015-2016 Free Software Foundation, Inc. |
| |
| Contributed by Intel Corp. <walfred.tedeschi@intel.com> |
| <mircea.gherzan@intel.com> |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdlib.h> |
| #include "x86-cpuid.h" |
| |
| #ifndef NOINLINE |
| #define NOINLINE __attribute__ ((noinline)) |
| #endif |
| |
| #define SIZE 5 |
| |
| typedef int T; |
| |
| unsigned int have_mpx (void) NOINLINE; |
| |
| unsigned int NOINLINE |
| have_mpx (void) |
| { |
| unsigned int eax, ebx, ecx, edx; |
| |
| if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx)) |
| return 0; |
| |
| if ((ecx & bit_OSXSAVE) == bit_OSXSAVE) |
| { |
| if (__get_cpuid_max (0, NULL) < 7) |
| return 0; |
| |
| __cpuid_count (7, 0, eax, ebx, ecx, edx); |
| |
| if ((ebx & bit_MPX) == bit_MPX) |
| return 1; |
| else |
| return 0; |
| } |
| return 0; |
| } |
| |
| void |
| foo (T *p) |
| { |
| T *x; |
| |
| #if defined __GNUC__ && !defined __INTEL_COMPILER |
| __bnd_store_ptr_bounds (p, &p); |
| #endif |
| |
| x = p + SIZE - 1; |
| |
| #if defined __GNUC__ && !defined __INTEL_COMPILER |
| __bnd_store_ptr_bounds (x, &x); |
| #endif |
| /* Dummy assign. */ |
| x = x + 1; /* after-assign */ |
| return; |
| } |
| |
| int |
| main (void) |
| { |
| if (have_mpx ()) |
| { |
| T *a = NULL; |
| |
| a = calloc (SIZE, sizeof (T)); /* after-decl */ |
| #if defined __GNUC__ && !defined __INTEL_COMPILER |
| __bnd_store_ptr_bounds (a, &a); |
| #endif |
| |
| foo (a); /* after-alloc */ |
| free (a); |
| } |
| return 0; |
| } |